Limestone Railway Ballast from Mexico
Hard, crushed limestone rocks sized 1.5-3 inches for use as railway track ballast to provide drainage and stability. This fits HTS 2517.10.00.20 as crushed limestone for railway ballast, excluding gravel forms. Chapter priority rules place it definitively in 2517.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit AREMA or ASTM C33 ballast specifications with shipment; declare exact sieve sizes to distinguish from general aggregates; inspect for contaminants that could trigger hazardous material rules